A British lawyer has died after being served drinks laced with a toxic substance in Laos, it has been reported.

Two Danish tourists, an American man and an Australian teenager also died after reportedly being offered free "Laos Tiger" vodka shots by a bar in Vang Vieng. Brit Simone White, a lawyer from Orpington, Kent, also became seriously ill amid fears the drinks were laced with methanol.

It has since been reported the 28-year-old has also died. The dangerous substance, which is sometimes illegally used to dilute alcohol, can cause severe health effects, with the NHS warning even as little as 4ml could lead to visual hallucinations and blindness.
Holly Bowles, 19, Simone White, 28, and Bianca Jones, 19, were among two dozen who were poisoned

Earlier, Simone's travel companion, Bethany Clarke, gave a warning to others in the region to "please avoid all local spirits". She said: "Our group stayed in Vang Vieng and we drank free shots offered by one of the bars.

"Just avoid them as so not worth it. Six of us who drank from the same place are in hospital currently with methanol poisoning."

More than 100 holidaymakers were reportedly treated to the complimentary shots at a hostel. Despite claims of drink tampering, the owner Duong Duc Toan has refuted such allegations. He told the Sun: "Right now the police [are telling] every hostel and hotel and bar to stop selling drinks in Vang Vieng.
The bar in Vang Vieng is said to have served the drinks to the tourists (
Image:
AP)

"The police in Vang Vieng and [the capital] Vientiane already came to the hostel to check, the shop [where] we buy the vodka, check the shop [where] we buy the whisky. We don't do anything wrong, for sure. I really take care of all of the customers [who] stay with our hotel and our hostel."

Australian Prime Minister Anthony Albanese told its parliament 19-year-old Bianca Jones died after being evacuated from Vang Vieng for treatment in a Thai hospital. Her friend Holly Bowles, also 19, remains in hospital in Thailand. Australia said "several foreign nationals" had also been victims of methanol poisoning.

The US State Department confirmed an American had died and Denmark's Foreign Ministry said two of its citizens also died in "the incident in Laos".

The Foreign Office's website warns would-be travellers to the region of male and female tourists of reports of drink and food spiking. It reads: "Be cautious about accepting drinks from strangers at bars, clubs, restaurants and parties."

A spokesman added: "We are supporting the family of a British woman who has died in Laos, and we are in contact with the local authorities.”